Varnish and paint remover



. 35 solvents employed.

Patented Apr. 13, 1926.

UNITED .STATES PATENT oFFIcE.

MAX PHILLIPS, OF EVANS'V'ILLE, WISCONSIN, AN D MARSHALL G088, F ASHLAND, I

OHIO, DEDICATED, BY MESNE ASSIGNMENTS, TO THE STATES.

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To all whom it may comer n:

. Be it known that we, Max Pnnmres and MARSHALL J. Gross, citizens of the United States of America, and employees of the De- 5 pertinent of Agriculture, residing in the city of Evansville, county of Rock, State of Wisconsin, and in the city of Ashland, county of Ashland, State of Ohio, respectively, Whose po'st-oflice addresses are Department of Agriculture, Washington, D. (3.,

- is .an aromatic hydrocarbon which is obtained as a by-product in the preparation of wood-pulp. Hitherto no extensive use for this product has been found.

' We have found that p-cymene when mixed with 95%? ethyl alcoho acetone methyl al..

cohol, isopropizl alcohol, 11. buty alcohol or methyl ethyl etone in various proportions produces a mixture which is very effective as a varnish or'paint remover,

80 We shall illustrate our invention by de scribing the various mixtures of the'solvents we have used and the manner in which we have employed them without limiting ourselves to the special concentrationv of the vOne preparation that we use consists 01 equal volumes of p-cymene and 95% ethyl alcohol. This mixture is applied to the surface from which it isdesired to remove the 4 varnish and allowed to remain .for' two orthree minutes after which the varnish can be removed with a cloth.

, claim yams]: AND rum: nnuovn'n. Application filed Oetober 24, 1925. Serial x. 04,707.

To remove paint we roceed in the same manner as above described exce t that the alcohol-cymene mixture is allowe to remain in contact with the painted surface for a few minutes longer after which the, paint be- .comes softened and may be readily removed by meansof-a knife, scraper, or stifi brush.

Although we prefer to use the alcohol-cymene mixturein the concentration of equal volumes of each, other mixtures as for example, 1 vol. 95% ethyl alcohol to 2 vol. of p-cymene; 1 vol. 95% ethylalcohol to 3 vol. of p-cymene; 2 vol. 95% ethyl alcohol to. 1 vol. 'p-cymene; 3 vol. of 95% ethyl alcohol to 1 vol. p-cymene, are also effect ve-in the I removal of varnish and aint.

Other preparations w 'ch we use to remove varnish and paint are made bymixing rnornn or "ran Um'rnn p-cymene with other solvents such as acetone, methyl alcohol, iso fo yl alcohol, 11. 'butyl alcohol, and methy et yl ketone.

Having. thus described our invention, we 1. A varnish and paint remover compnsing p-cymene and ethyl alcohol.

2. A varnish and paint-remover comprising p-cymene and acetone.

3. A varnish and paint, remover compris ing p-cymene' and methyl alcohol.

4. A varnish-and paint remover comprisq ing p-cymene and isopropyl alcohol.

5. A varnish and paint removercomprising p-cymene and n. butyl alcohol.

. 6. A varnish and paint remover comprisin p-cymene and methyl ethyl ketone.

11 testimony whereof, we aflix our signal-- tures 111 the presence witnesses.

PHILLIPS.

of two subscribing 1 A MARSHALL Jcosaj 

